Overview
The TPS74611PQWDRBRQ1 is a 1-A, ultra-low-dropout linear voltage regulator (LDO) produced by Texas Instruments. This device is part of the TPS746-Q1 family and is specifically designed for high accuracy and reliability in various applications. It is available in a small 8-pin, 3-mm × 3-mm SON (VSON) package with wettable flanks, facilitating optical inspection and improving thermal performance. The regulator supports an input voltage range from 1.5 V to 6.0 V and provides a fixed output voltage of 1.1 V. It is AEC-Q100 qualified for automotive applications, ensuring operation over a temperature range of –40°C to +125°C.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Input Voltage (VIN) | 1.5 | - | 6.0 | V |
| Output Voltage (VOUT) | 1.1 | - | 1.1 | V |
| Output Current (IOUT) | 0 | - | 1 | A |
| Dropout Voltage | - | - | 265 mV (max) at 1 A | mV |
| Output Accuracy | - | ±0.85% | ±1.5% | % |
| Quiescent Current (IQ) | - | 25 μA | - | μA |
| Junction Temperature (TJ) | -40 | - | 150 | °C |
| Thermal Resistance (RθJA) | - | - | 55.5 °C/W | °C/W |
Key Features
- AEC-Q100 qualified for automotive applications with a temperature grade 1: –40°C to +125°C.
- Ultra-low dropout voltage of 265 mV (max) at 1 A.
- High output accuracy: ±0.85% typical, ±1.5% maximum.
- Power-good output options: open-drain or push-pull.
- Low quiescent current: 25 μA typical.
- Active output discharge and integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features.
- Stable with small ceramic output capacitors (1 µF or larger).
- Functional Safety-Capable with documentation available to aid in functional safety system design.
Applications
- Automotive head units
- Front and rear cameras
- Automotive cluster displays
- Telematics control units
- Medium and short-range radar systems
Q & A
- What is the input voltage range of the TPS74611PQWDRBRQ1?
The input voltage range is from 1.5 V to 6.0 V.
- What is the fixed output voltage of the TPS74611PQWDRBRQ1?
The fixed output voltage is 1.1 V.
- What is the maximum output current of the TPS74611PQWDRBRQ1?
The maximum output current is 1 A.
- What is the dropout voltage of the TPS74611PQWDRBRQ1?
The dropout voltage is 265 mV (max) at 1 A.
- What is the quiescent current of the TPS74611PQWDRBRQ1?
The quiescent current is 25 μA typical.
- Is the TPS74611PQWDRBRQ1 AEC-Q100 qualified?
Yes, it is AEC-Q100 qualified for automotive applications.
- What are the power-good output options for the TPS74611PQWDRBRQ1?
The power-good output options are open-drain or push-pull.
- What are the thermal resistance values for the TPS74611PQWDRBRQ1?
The thermal resistance (RθJA) is 55.5 °C/W for the VSON package.
- What safety features does the TPS74611PQWDRBRQ1 include?
The device includes integrated thermal shutdown, current limit, and undervoltage lockout (UVLO) features.
- Is the TPS74611PQWDRBRQ1 stable with small ceramic output capacitors?
Yes, it is stable with small ceramic output capacitors (1 µF or larger).
